44
Control systems Self-acting controls
Dimensions/weights (approximate) in mm and kg A1
(Flanged KA33 and KB33) A (Screwed KA31 and KB31)
C
B
4.5 30
PN16
BS 10'F'
Weight
Size
A
A1
A1
B
C
Scr.
Flg.
DN15-½"
88
130
130
105
42
1.3
3.3
DN20-¾"
102
150
147
105
38
1.6
4.3
DN25-1"
134
160
157
107
51
3.2
5.7
KA31 and KA33
DN32-1¼"
144
180
180
110
5.1
8.8
DN40-1½"
150
200
200
110
6.3
11.0
DN50-2"
180
230
230
110
7.8
13.0
DN25-1"
136
160
157
138
51
3.4
5.9
DN32-1¼"
144
180
180
152
51
5.7
9.1
KB31 and KB33
DN40-1½"
150
200
200
152
62
6.9
11.2
DN50-2"
180
230
230
152
71
8.8
13.4
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions supplied with the product.
Installation note: The valve should be fitted in a horizontal line with the actuator vertically below the pipeline.
How to order Example: 1 off Spirax Sarco 1 ¼ " screwed BSP KA31 self-acting control valve with cast iron body.
TI-P078-02 CTLS Issue 14
Page 4 of 5
KA31, KA33, KB31 and KB33 Cast Iron Self-acting Control Valves
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